Title: Integrating optical waveguides in electrowetting-on-dielectric digital microfluidic chips
Authors: Ceyssens, Frederik * ×
Witters, Daan *
Van Grimbergen, Thom
Knez, Karel
Lammertyn, Jeroen
Puers, Bob #
Issue Date: Feb-2013
Publisher: Elsevier Sequoia
Series Title: Sensors and Actuators B, Chemical vol:181 pages:166-171
Abstract: Readout through a microscope-based setup is one of the most prevalent optical detection
methods used in current digital (i.e. droplet-based) electrowetting-on-dielectric lab-on-chip devices.
The integration of waveguides on such devices allows further size and complexity reduction for
absorption, fluorescence and surface plasmon resonance based detection mechanisms.
In this paper, we show a straightforward method to integrate multimode polymer optical waveguides
on an EWOD device. A design is shown that allows droplets to be transported by EWOD actuation to a
gap between two opposing waveguides down to 300 micron in size, and engulf the integrated
waveguides. The resulting proof-of-concept system is validated using a gold nanoparticle based model
ISSN: 0925-4005
Publication status: published
KU Leuven publication type: IT
Appears in Collections:ESAT - MICAS, Microelectronics and Sensors
Division of Mechatronics, Biostatistics and Sensors (MeBioS)
* (joint) first author
× corresponding author
# (joint) last author

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